EP3771537A1 - Edge working method - Google Patents
Edge working method Download PDFInfo
- Publication number
- EP3771537A1 EP3771537A1 EP20186854.4A EP20186854A EP3771537A1 EP 3771537 A1 EP3771537 A1 EP 3771537A1 EP 20186854 A EP20186854 A EP 20186854A EP 3771537 A1 EP3771537 A1 EP 3771537A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- edge strip
- edge
- joint area
- processing method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title description 6
- 238000003384 imaging method Methods 0.000 claims abstract description 23
- 238000003672 processing method Methods 0.000 claims abstract description 14
- 239000002023 wood Substances 0.000 claims abstract description 4
- 239000002983 wood substitute Substances 0.000 claims abstract description 4
- 238000009826 distribution Methods 0.000 claims description 7
- 239000002346 layers by function Substances 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- 239000004831 Hot glue Substances 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000011156 evaluation Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
- B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
Definitions
- the invention relates to an edge processing method according to the preamble of claim 1.
- the edge processing method is used in the processing of plate-shaped workpieces made of wood or wood substitute materials in which an edge strip or a plurality of edge strips is / are attached to the narrow side of the plate-shaped workpiece.
- the corresponding edge strip is drawn around the narrow side so that both ends of the edge strip meet in a joint area.
- the formation of this joint area is of crucial importance with regard to the processing quality. For example, if the butt joint is too wide, the corresponding plate-shaped workpiece cannot be further processed or picked. The edge strip must be removed and reapplied.
- the joint gluing is checked by a person through visual inspection and then a decision is made as to whether the workpiece meets the quality requirements. This is very time-consuming, especially in the machine processing of panel-shaped workpieces, which is why there is a desire to largely automate the checking in order to also be able to identify parts with insufficient butt-gluing and to process them accordingly.
- the object of the present invention is therefore to create an edge processing method which enables extensive automation of the process mentioned.
- an imaging method is used to check the joint area of the workpiece and to decide whether the joint area meets the quality requirements or not.
- at least one edge strip is pressed on the narrow side of a plate-shaped workpiece made of wood or wood substitute by means of a pressure device with relative movement of pressure device and workpiece and attached while heating a connecting means provided on the edge strip and / or the workpiece. It is attached either in such a way that one end of the edge strip on the workpiece forms a joint area with the other end of the edge strip or one end of another edge strip. Alternatively, it can be attached in such a way that the side of the edge strip facing the workpiece forms a joint area with the workpiece.
- the edge strip (s), in particular the abutment area or the joint area mentioned, is / are image-captured by means of an imaging system that tracks the pressure device, in particular an infrared camera or a hyperspectral camera or a light section sensor.
- an imaging system that tracks the pressure device, in particular an infrared camera or a hyperspectral camera or a light section sensor.
- the corresponding image of the joint area can be evaluated immediately and the evaluation result can be forwarded to the machine control, which then decides whether the corresponding workpiece has to be subjected to a new coating process with edge strips or whether it is a good part for the further planned processing or commissioning process can be fed.
- the distance between the ends forming the joint area or the distance in the joint area between the edge strips and the workpiece can be determined from the thermal image recorded by the imaging system. By determining this distance, the distance thus determined can be compared with a predetermined minimum distance or maximum value that is stored in the machine control and fulfills the quality requirements. In this way it can be decided whether there is a good part or not.
- a further development of the method according to the invention provides that immediately after the aforementioned comparison check, the edge strip or strips is / are removed again from the workpiece if the determined distance exceeds the specified maximum value.
- the imaging system is used to record an image, in particular a 2D image or 3D image, of the temperature distribution of the at least one edge strip.
- the temperature distribution can be used, for example, to determine whether the adhesive used has reached the required temperature at all points or whether it has fallen below this. For example, if the temperature distribution shows temperatures that are too low locally, the edge strip may not adhere adequately to the workpiece and must therefore be removed again.
- the image is captured by the imaging system in a spectral range within the range 400 nm to 2500 nm.
- the joint or joint area can be measured well, and, on the other hand, a temperature distribution mostly in the infrared range can be recorded.
- the connecting means comprises a hot melt adhesive and / or a fusible functional layer provided on an edge strip.
- the functional layer can be melted by a laser source and / or infrared source and / or ultrasound source and / or magnetic field source and / or microwave source and / or hot air source and / or plasma source or is melted by at least one of the sources mentioned.
- FIGS. 3a and 3b show a workpiece section in a perspective view from above, in which a joint area is checked with a light section sensor.
- a plate-shaped workpiece 1 is schematically indicated, which is coated with an edge strip 2 on its narrow side.
- the edge strip 2 which has previously been activated, ie made sticky, is joined to the narrow side of the workpiece 1 and pressed on by means of a pressure roller 31.
- the pressure roller 31 is part of a device 3 which comprises an imaging system 33, in particular an infrared camera or a hyperspectral camera or a light section sensor.
- the tracking roller 32 is provided in this case in order to ensure that the distance of the imaging system 33 from the edge band does not change but remains constant.
- the imaging system is shown 33 of the pressure roller 31 tracked.
- the relative direction of movement X only indicates that the device 3 - the pressure roller 31 and the imaging system 33 can also be moved separately and independently of one another - and the workpiece 1 must move relative to one another. This can be done in a continuous process, of course it can also be used in a machining center.
- the schematic illustration of the Figure 1 can be applied to both situations.
- the joint area S is shown by way of example, which is produced either by two ends 2a, 2a 'of the same edge strip 2 or by two butting ends of two different edge strips 2, 2'.
- the imaging system 33 is shown in FIG Figure 2 The situation shown is now positioned above the butt joint and can capture this image.
- An evaluation device (not shown) either determines a temperature profile, which is recorded with the imaging system 33 as the edge strip 2 is passed over, in order to check whether the edge strip 2 is equally well connected to the workpiece 1 everywhere.
- the evaluation device can determine the width of the joint from the image of the butt joint recorded by the imaging method and compare this with a threshold value which, for example, contains a maximum dimension for the width of the butt joint.
- the evaluation device can then decide whether or not the edge strip 2 has to be removed from the workpiece 1 or not. Corresponding arrangements can then be passed on to the machine control system.
- the imaging method for example the glue line, the between edge strips 2 and workpiece 1 is created. Analogously to the butt joint, this glue joint can also be measured with the imaging system 33 and compared with correspondingly stored quality criteria or quality measures.
- the imaging system 33 is formed by a light section sensor.
- a light source preferably a laser light source, sends a light beam 4 expanded into a line onto the surface of the workpiece 1, from where it is reflected or scattered.
- the light section sensor also includes a two-dimensional light detection system, which is preferably a CCD camera that detects an image of the surface of the workpiece 1 in the area of the incident light beam 4.
- the incident light beam 4 and the light beam 4 'detected by the light detection system do not lie in one plane.
- the evaluation system not shown here, which determines the position of the detected light beam 4 'in the areal light detection system, can calculate a height profile of the surface of the workpiece 1 using the principle of triangulation via the offset of the detected light beam 4' in the light detection system.
- the workpiece 1 moves under the imaging system 33 in direction x. It is also possible that the workpiece 1 is at rest while the imaging system 33 is moved over the surface of the workpiece 1.
- the height of the step is determined from the strength of the offset, the position of the edges from the course of the offset over the light beam 4 and the width of the joint area S over the duration of the offset, so that the evaluation system can evaluate the joint area well.
- the light detection system is preferably a CCD camera. It is not necessary for the system to work in the visible range of light. It is also entirely conceivable that IR light is used, so that an infrared camera or even a hyperspectral camera can also be used. In addition to the light line, the temperature distribution on the surface can also be recorded, for example to determine the quality of the edge strip bonding.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Laser Beam Processing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Bei dem Kantenverarbeitungsverfahren wird wenigstens ein Kantenstreifen (2, 2') an der Schmalseite eines plattenförmigen Werkstücks (1) aus Holz oder Holzersatzstoff mittels einer Andruckeinrichtung (31) unter relativer Bewegung von Andruckeinrichtung (31) und Werkstück (1) angedrückt. Dabei wird unter Erwärmen eines an dem Kantenstreifen (2, 2') und/oder dem Werkstück (1) vorgesehenen Verbindungsmittels angebracht. Das eine Ende (2a') des Kantenstreifens (2, 2') bildet auf dem Werkstück (1) einen Stoßbereich (S) mit dem anderen Ende (2a) des Kantenstreifens (2, 2') oder einem Ende eines weiteren Kantenstreifens aus. Alternativ bildet die dem Werkstück (1) zugewandte Seite des Kantenstreifens (2, 2') mit dem Werkstück (1) einen Fugenbereich. Der oder die Kantenstreifen (2, 2'), insbesondere der Stoßbereich (S) oder der Fugenbereich, wird/ werden mittels eines der Andruckeinrichtung nachgeführten bildgebenden Systems, insbesondere einer Infrarotkamera (33) oder Hyperspektralkamera oder einem Lichtschnittsensor bildlich erfasst.In the edge processing method, at least one edge strip (2, 2 ') is pressed against the narrow side of a plate-shaped workpiece (1) made of wood or wood substitute by means of a pressure device (31) with relative movement of the pressure device (31) and workpiece (1). A connecting means provided on the edge strip (2, 2 ') and / or the workpiece (1) is attached while heating. One end (2a ') of the edge strip (2, 2') forms a joint area (S) on the workpiece (1) with the other end (2a) of the edge strip (2, 2 ') or one end of another edge strip. Alternatively, the side of the edge strip (2, 2 ') facing the workpiece (1) forms a joint area with the workpiece (1). The edge strip (s) (2, 2 '), in particular the butt area (S) or the joint area, is / are captured by means of an imaging system that tracks the pressure device, in particular an infrared camera (33) or hyperspectral camera or a light section sensor.
Description
Die Erfindung betrifft ein Kantenverarbeitungsverfahren nach dem Oberbegriff des Anspruchs 1.The invention relates to an edge processing method according to the preamble of claim 1.
Das Kantenverarbeitungsverfahren wird bei der Verarbeitung von plattenförmigen Werkstücken aus Holz oder Holzersatzstoffen eingesetzt, bei denen ein Kantenstreifen oder eine Mehrzahl Kantenstreifen auf der Schmalseite des plattenförmigen Werkstücks angebracht wird/werden.The edge processing method is used in the processing of plate-shaped workpieces made of wood or wood substitute materials in which an edge strip or a plurality of edge strips is / are attached to the narrow side of the plate-shaped workpiece.
Gerade bei Freiformen wird der entsprechende Kantenstreifen um die Schmalseite herumgezogen, sodass sich beide Enden des Kantenstreifens in einem Stoßbereich treffen. Die Ausbildung dieses Stoßbereichs ist im Hinblick auf die Verarbeitungsqualität von entscheidender Bedeutung. Ist beispielsweise die Stoßfuge zu breit, kann das entsprechende plattenförmige Werkstück so nicht weiterverarbeitet oder kommissioniert werden. Es muss der Kantenstreifen entfernt und neu aufgebracht werden. In der Regel wird im Rahmen der Qualitätskontrolle die Stoßverleimung durch eine Person durch Inaugenscheinnahme überprüft und dann entschieden, ob das Werkstück den Qualitätsanforderungen genügt. Gerade bei der maschinellen Verarbeitung plattenförmiger Werkstücke ist dies sehr zeitaufwendig, weswegen der Wunsch besteht, das Überprüfen weitgehend zu automatisieren, um dabei auch in der Lage zu sein, Teile mit unzureichender Stoßverleimung zu erkennen und entsprechend weiter zu verarbeiten.In the case of free forms in particular, the corresponding edge strip is drawn around the narrow side so that both ends of the edge strip meet in a joint area. The formation of this joint area is of crucial importance with regard to the processing quality. For example, if the butt joint is too wide, the corresponding plate-shaped workpiece cannot be further processed or picked. The edge strip must be removed and reapplied. As a rule, as part of quality control, the joint gluing is checked by a person through visual inspection and then a decision is made as to whether the workpiece meets the quality requirements. This is very time-consuming, especially in the machine processing of panel-shaped workpieces, which is why there is a desire to largely automate the checking in order to also be able to identify parts with insufficient butt-gluing and to process them accordingly.
Aufgabe der vorliegenden Erfindung ist daher, ein Kantenverarbeitungsverfahren zu schaffen, welches eine weitgehende Automatisierung des genannten Prozesses ermöglicht.The object of the present invention is therefore to create an edge processing method which enables extensive automation of the process mentioned.
Diese Aufgabe wird durch ein Kantenverarbeitungsverfahren mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen finden sich in den Unteransprüchen.This object is achieved by an edge processing method having the features of claim 1. Advantageous embodiments can be found in the subclaims.
Erfindungsgemäß wird ein bildgebendes Verfahren eingesetzt, um den Stoßbereich des Werkstücks zu überprüfen und zu entscheiden, ob der Stoßbereich den Qualitätsanforderungen genügt oder nicht. Dazu wird beim erfindungsgemäßen Kantenverarbeitungsverfahren wenigstens ein Kantenstreifen an der Schmalseite eines plattenförmigen Werkstücks aus Holz oder Holzersatzstoff mittels einer Andruckeinrichtung unter relativer Bewegung von Andruckeinrichtung und Werkstück angedrückt und dabei unter Erwärmen eines an dem Kantenstreifen und/oder dem Werkstück vorgesehenen Verbindungsmittels angebracht. Das Anbringen erfolgt entweder so, dass das eine Ende des Kantenstreifens auf dem Werkstück einen Stoßbereich mit dem anderen Ende des Kantenstreifens oder einem Ende eines weiteren Kantenstreifens ausbildet. Alternativ kann das Anbringen so erfolgen, dass die dem Werkstück zugewandte Seite des Kantenstreifens mit dem Werkstück einen Fugenbereich bildet.According to the invention, an imaging method is used to check the joint area of the workpiece and to decide whether the joint area meets the quality requirements or not. For this purpose, in the edge processing method according to the invention, at least one edge strip is pressed on the narrow side of a plate-shaped workpiece made of wood or wood substitute by means of a pressure device with relative movement of pressure device and workpiece and attached while heating a connecting means provided on the edge strip and / or the workpiece. It is attached either in such a way that one end of the edge strip on the workpiece forms a joint area with the other end of the edge strip or one end of another edge strip. Alternatively, it can be attached in such a way that the side of the edge strip facing the workpiece forms a joint area with the workpiece.
Erfindungsgemäß ist nun vorgesehen, dass der oder die Kantenstreifen, insbesondere der genannte Stoßbereich oder der genannte Fugenbereich, mittels eines der Andruckeinrichtung nachgeführten bildgebenden Systems, insbesondere einer Infrarotkamera oder einer Hyperspektralkamera oder einem Lichtschnittsensor bildlich erfasst wird/werden. Durch diese Bilderfassung kann das entsprechende Bild des Stoßbereichs oder Fugenbereichs unmittelbar ausgewertet und das Auswertungsergebnis an die Maschinensteuerung weitergeleitet werden, welche dann entscheidet, ob das entsprechende Werkstück einem erneuten Beschichtungsvorgang mit Kantenstreifen unterzogen werden muss oder ob es als Gutteil dem weiteren geplanten Verarbeitung- oder Kommissionierungsprozess zugeführt werden kann.According to the invention, it is now provided that the edge strip (s), in particular the abutment area or the joint area mentioned, is / are image-captured by means of an imaging system that tracks the pressure device, in particular an infrared camera or a hyperspectral camera or a light section sensor. With this image acquisition, the corresponding image of the joint area can be evaluated immediately and the evaluation result can be forwarded to the machine control, which then decides whether the corresponding workpiece has to be subjected to a new coating process with edge strips or whether it is a good part for the further planned processing or commissioning process can be fed.
Nach einer vorteilhaften Ausführungsform kann aus dem durch das bildgebende System erfassten Wärmebild der Abstand zwischen den den Stoßbereich bildenden Enden oder der Abstand im Fugenbereich zwischen Kantenstreifen und dem Werkstück ermittelt werden. Durch Ermittlung dieses Abstands kann der so ermittelte Abstand mit einem in der Maschinensteuerung hinterlegten vorgegebenen, die Qualitätsanforderungen erfüllenden Mindestabstand bzw. Höchstwert verglichen werden. So kann entschieden werden, ob ein Gutteil vorliegt oder nicht. Eine Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass im unmittelbaren Anschluss an die genannte Vergleichsüberprüfung der oder die Kantenstreifen wieder vom Werkstück entfernt wird/werden, wenn der ermittelte Abstand den vorgegebenen Höchstwert überschreitet.According to an advantageous embodiment, the distance between the ends forming the joint area or the distance in the joint area between the edge strips and the workpiece can be determined from the thermal image recorded by the imaging system. By determining this distance, the distance thus determined can be compared with a predetermined minimum distance or maximum value that is stored in the machine control and fulfills the quality requirements. In this way it can be decided whether there is a good part or not. A further development of the method according to the invention provides that immediately after the aforementioned comparison check, the edge strip or strips is / are removed again from the workpiece if the determined distance exceeds the specified maximum value.
Beim erfindungsgemäßen Kantenverarbeitungsverfahren kann es auch vorteilhaft sein, wenn mit dem bildgebenden System ein Bild, insbesondere 2D-Bild oder 3D-Bild, der Temperaturverteilung des wenigstens einen Kantenstreifens aufgenommen wird. Über die Temperaturverteilung lässt sich beispielsweise feststellen, ob der verwendete Klebstoff an allen Stellen die erforderliche Temperatur erreicht hat bzw. ob diese unterschritten wurde. Zeigt die Temperaturverteilung beispielsweise lokal zu geringe Temperaturen, kann es sein, dass der Kantenstreifen nur unzureichend am Werkstück anhaftet und deshalb wieder entfernt werden muss.In the edge processing method according to the invention, it can also be advantageous if the imaging system is used to record an image, in particular a 2D image or 3D image, of the temperature distribution of the at least one edge strip. The temperature distribution can be used, for example, to determine whether the adhesive used has reached the required temperature at all points or whether it has fallen below this. For example, if the temperature distribution shows temperatures that are too low locally, the edge strip may not adhere adequately to the workpiece and must therefore be removed again.
Vorteilhaft ist auch, wenn das Bild durch das bildgebende System in einem Spektralbereich innerhalb des Bereiches 400 nm bis 2500 nm erfasst wird. In diesem Spektralbereich kann einerseits der Stoß- oder Fugenbereich gut ausgemessen, andererseits auch eine zumeist im Infrarotbereich liegende Temperaturverteilung aufgenommen werden.It is also advantageous if the image is captured by the imaging system in a spectral range within the range 400 nm to 2500 nm. In this spectral range, on the one hand, the joint or joint area can be measured well, and, on the other hand, a temperature distribution mostly in the infrared range can be recorded.
Nach einer vorteilhaften Ausführungsform ist vorgesehen, dass das Verbindungsmittel einen Schmelzkleber und/oder eine an einem Kantenstreifen vorgesehene aufschmelzbare Funktionsschicht umfasst. Die Funktionsschicht ist durch eine Laserquelle und/oder Infrarotquelle und/oder Ultraschallquelle und/oder Magnetfeldquelle und/oder Mikrowellenquelle und/oder Heißluftquelle und/oder Plasmaquelle aufschmelzbar oder wird durch wenigstens eine der genannten Quellen aufgeschmolzen.According to an advantageous embodiment, it is provided that the connecting means comprises a hot melt adhesive and / or a fusible functional layer provided on an edge strip. The functional layer can be melted by a laser source and / or infrared source and / or ultrasound source and / or magnetic field source and / or microwave source and / or hot air source and / or plasma source or is melted by at least one of the sources mentioned.
Die Erfindung wird nachfolgend anhand der
-
Figur 1 zeigt ein Werkstück, welches mit einem Kantenstreifen beschichtet wird. -
zeigt ein Werkstück, bei welchem ein Stoßbereich mit dem erfindungsgemäßen Verfahren überprüft wird.Figur 2
-
Figure 1 shows a workpiece which is coated with an edge strip. -
Figure 2 shows a workpiece in which a joint area is checked using the method according to the invention.
Die
In
In
Abhängig von den ermittelten Werten und/oder der ermittelten Temperaturverteilung kann dann die Auswertungseinrichtung entscheiden, ob gegebenenfalls der Kantenstreifen 2 vom Werkstück 1 entfernt werden muss oder nicht. Entsprechende Anordnungen können dann an die Maschinensteuerung weitergegeben werden.Depending on the values determined and / or the temperature distribution determined, the evaluation device can then decide whether or not the
Natürlich können mit dem bildgebenden Verfahren auch andere Größen ermittelt werden, zum Beispiel auch die Leimfuge, die zwischen Kantenstreifen 2 und Werkstück 1 entsteht. Analog zur Stoßfuge kann auch diese Leimfuge mit dem bildgebenden System 33 vermessen und mit entsprechend hinterlegten Qualitätskriterien bzw. Qualitätsmaßen verglichen werden.Of course, other sizes can also be determined with the imaging method, for example the glue line, the between
In
Zu dem Lichtschnittsensor gehört ebenfalls ein flächenmäßiges Lichterfassungssystem, was bevorzugt eine CCD-Kamera ist, die ein Bild der Oberfläche des Werkstücks 1 im Bereich des auftreffenden Lichtstahls 4 erfasst. Dabei liegen der einfallende Lichtstrahl 4 und der vom Lichterfassungssystem erfasste Lichtstrahl 4' nicht in einer Ebene. Das bedeutet, dass das hier nicht gezeigte Auswertesystem, das die Position des erfassten Lichtstrahls 4' im flächenmäßigen Lichterfassungssystem bestimmt, mit dem Prinzip der Triangulation über den Versatz des erfassten Lichtstrahls 4' im Lichterfassungssystem ein Höhenprofil der Oberfläche des Werkstücks 1 errechnen kann.The light section sensor also includes a two-dimensional light detection system, which is preferably a CCD camera that detects an image of the surface of the workpiece 1 in the area of the
In dem hier gezeigten Beispiel bewegt sich das Werkstück 1 unter dem bildgebenden System 33 in Richtung x hinweg. Es ist auch möglich, dass das Werkstück 1 ruht, während das bildgebende System 33 über die Oberfläche des Werkstücks 1 hinwegbewegt wird.In the example shown here, the workpiece 1 moves under the
In der in
In der in
Aus der Stärke des Versatzes wird die Höhe der Stufe bestimmt, aus dem Verlauf des Versatzes über den Lichtstrahl 4 die Lage der Kanten und über die Dauer des Versatzes die Breite des Stoßbereiches S, so dass das Auswertesystem den Stoßbereich gut bewerten kann.The height of the step is determined from the strength of the offset, the position of the edges from the course of the offset over the
Wie oben bereits erwähnt handelt es sich bei dem Lichterfassungssystem bevorzugt um eine CCD-Kamera. Dabei ist es nicht notwendig, dass das System im sichtbaren Bereich des Lichtes arbeitet. Es ist durchaus auch denkbar, dass IR-Licht Anwendung findet, so dass auch eine Infrarotkamera oder sogar eine Hyperspektralkamera eingesetzt werden kann. Dabei kann neben der Lichtlinie ebenfalls die Temperaturverteilung auf der Oberfläche erfasst werden, um beispielsweise die Qualität der Kantenstreifenverklebung zu bestimmen.As already mentioned above, the light detection system is preferably a CCD camera. It is not necessary for the system to work in the visible range of light. It is also entirely conceivable that IR light is used, so that an infrared camera or even a hyperspectral camera can also be used. In addition to the light line, the temperature distribution on the surface can also be recorded, for example to determine the quality of the edge strip bonding.
Claims (7)
dadurch gekennzeichnet,
dass der oder die Kantenstreifen (2, 2'), insbesondere der Stoßbereich (S) oder der Fugenbereich, mittels eines der Andruckeinrichtung (31) nachgeführten bildgebenden Systems (33), insbesondere einer Infrarotkamera oder einer Hyperspektralkamera oder einem Lichtschnittsensor, bildlich erfasst wird/werden.
characterized,
that the edge strip (s) (2, 2 '), in particular the joint area (S) or the joint area, is captured image-wise by means of an imaging system (33) that tracks the pressure device (31), in particular an infrared camera or a hyperspectral camera or a light section sensor will.
dadurch gekennzeichnet,
dass aus dem durch das bildgebende System (33) erfassten Wärmebild der Abstand zwischen den den Stoßbereich (S) bildenden Enden (2a', 2a) oder der Abstand im Fugenbereich zwischen Kantenstreifen (2, 2') und dem Werkstück (1) ermittelt wird.Edge processing method according to claim 1,
characterized,
that from the thermal image captured by the imaging system (33) the distance between the ends (2a ', 2a) forming the joint area (S) or the distance in the joint area between the edge strips (2, 2') and the workpiece (1) is determined .
dadurch gekennzeichnet,
dass der ermittelte Abstand mit einem vorgegebenen Höchstwert verglichen wird.Edge processing method according to claim 2,
characterized,
that the determined distance is compared with a predetermined maximum value.
dadurch gekennzeichnet,
dass der oder die Kantenstreifen (2, 2') wieder vom Werkstück (1) entfernt wird/werden, wenn der ermittelte Abstand den vorgegebenen Höchstwert überschreitet.Edge processing method according to claim 3,
characterized,
that the edge strip or strips (2, 2 ') is / are removed again from the workpiece (1) if the determined distance exceeds the specified maximum value.
dadurch gekennzeichnet,
dass mit dem bildgebenden System (33) ein Bild, insbesondere 2D-Bild oder 3D-Bild, der Temperaturverteilung des wenigstens einen Kantenstreifens (2, 2') aufgenommen wird.Edge processing method according to one of the preceding claims,
characterized,
that an image, in particular a 2D image or 3D image, of the temperature distribution of the at least one edge strip (2, 2 ') is recorded with the imaging system (33).
dadurch gekennzeichnet,
dass das Bild durch das bildgebende System in einem Spektralbereich innerhalb des Bereiches 400 nm bis 2500 nm erfasst wird.Edge processing method according to claim 5,
characterized,
that the image is captured by the imaging system in a spectral range within the range 400 nm to 2500 nm.
dadurch gekennzeichnet,
dass das Verbindungsmittel einen Schmelzkleber und/oder eine an einem Kantenstreifen (2, 2') vorgesehene aufschmelzbare Funktionsschicht umfasst, welche durch eine Laserquelle und/oder Infrarotquelle und/oder Ultraschallquelle und/oder Magnetfeldquelle und/oder Mikrowellenquelle und/oder Heißluftquelle und/oder Plasmaquelle aufschmelzbar ist oder aufgeschmolzen wird.Edge processing method according to one of the preceding claims,
characterized,
that the connecting means comprises a hot melt adhesive and / or a fusible functional layer provided on an edge strip (2, 2 '), which is generated by a laser source and / or infrared source and / or ultrasound source and / or magnetic field source and / or microwave source and / or hot air source and / or Plasma source is melted or is melted.
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DE102019120376.7A DE102019120376A1 (en) | 2019-07-29 | 2019-07-29 | Edge processing method |
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EP3771537A1 true EP3771537A1 (en) | 2021-02-03 |
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EP20186854.4A Pending EP3771537A1 (en) | 2019-07-29 | 2020-07-21 | Edge working method |
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Cited By (1)
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EP4349553A1 (en) * | 2022-10-04 | 2024-04-10 | IMA Schelling Deutschland GmbH | Edge processing method |
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EP0510231A1 (en) * | 1991-04-25 | 1992-10-28 | Homag Maschinenbau Ag | Apparatus for glueing edge strips to flat material |
DE202018100420U1 (en) * | 2017-02-09 | 2018-04-05 | Christof Schulte-Göbel | Device for applying edge strips |
DE102017114970A1 (en) * | 2017-07-05 | 2019-01-10 | Homag Gmbh | Apparatus and method for refining workpieces |
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DE10201413A1 (en) * | 2002-01-15 | 2003-07-24 | Buerkle Gmbh Robert | Method and device for loading a plate press |
DE102014008455A1 (en) * | 2014-06-05 | 2015-12-17 | Ima Klessmann Gmbh Holzbearbeitungssysteme | Device and method for applying an edge band on a narrow side of a workpiece |
DE102014214363B4 (en) * | 2014-07-23 | 2018-03-22 | Türmerleim Gmbh | Method and device for influencing and regulating a gluing process |
ITUB20152366A1 (en) * | 2015-07-21 | 2017-01-21 | Biesse Spa | MACHINE FOR EDGEING WOODEN PANELS OR THE LIKE |
DE102015114486A1 (en) * | 2015-08-31 | 2017-03-02 | Faurecia Innenraum Systeme Gmbh | Method for producing a cladding element with at least one plate of wood-like material and associated manufacturing arrangement |
DE102015219257A1 (en) * | 2015-10-06 | 2017-04-06 | Homag Gmbh | Processing machine and method for processing workpieces |
DE102017205208A1 (en) * | 2017-03-28 | 2018-10-04 | Homag Gmbh | Apparatus and method for coating a workpiece |
-
2019
- 2019-07-29 DE DE102019120376.7A patent/DE102019120376A1/en active Pending
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- 2020-07-21 EP EP20186854.4A patent/EP3771537A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0510231A1 (en) * | 1991-04-25 | 1992-10-28 | Homag Maschinenbau Ag | Apparatus for glueing edge strips to flat material |
DE202018100420U1 (en) * | 2017-02-09 | 2018-04-05 | Christof Schulte-Göbel | Device for applying edge strips |
DE102017114970A1 (en) * | 2017-07-05 | 2019-01-10 | Homag Gmbh | Apparatus and method for refining workpieces |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4349553A1 (en) * | 2022-10-04 | 2024-04-10 | IMA Schelling Deutschland GmbH | Edge processing method |
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